Welcome to the forums. With every camper, regardless of make, model, year, new, or used, there is always a learning curve. Is this your camper or are you looking to purchase this one? You haven't provided much information.
What year and model number are you referring to.
I found 2 videos on YouTube, one for a 2015 22 foot and one for a 2017 22 foot Carbon bumper pull. Both show the rear couches in the reclined position with a gap between them. The 2015 model video showed it came with an insert that went between them to fill that gap to make a full bed completely across.
2019 Montana High Country 375FL
2014 Chevy Duramax HD 6.6 - 3500 Diesel Dully Long bed Crew Cab